Liquid measuring and dispensing apparatus



T. F. CALLAHAN. LIQUID MEASURING AND DISPENSING APPARATUS.

APPLICATION FILED SEPT. 2, 1919.

Patented July 18, 1922 2 SHEETS-SflEET 1.

5 Qzumw muc MW T. F. CALLAHAN. LIQUID MEASURING AND DISPENSING APPARATUS.

APPLICATION FILED SEPT. 2,1919.

A rT /vez Patented July 18, 1922.

2 SHEETSSHEET 2.

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easuring and Dispensing Apparatus, of

which the following is a specification.

My invention relates to means for dispensing or delivering in relatively small quantities from a storage tank, gasoline, oil

or the. like, the liquid 'delivered being measured accurately during the operation and'in such fashion that the purchaser may have visible evidence of the fact.

Tothis end my apparatus is designed to measure the volume of the liquid delivered, in a container, either made of transparent material, as glass, or preferably made of some less fragile material, as metal, but provided with a sight opening or a tube similar to the sight feed tube employed on steam. boilers. The container or the sight tube is graduated to show the amount of liquid Within the container. In addition, the container is hung'or lotherwise connected'to a weighing mechanism, which, when the predetermined amount of liquid has entered the" container, will be over balanced and move.

In the drawings: Figural is a general view of an installation, designed supply gasoline at retail, showing the buried star- 1 age tank, a housing for the measuring mechanism, a standard to support the. mechanism, a feed pipe and air supply pipe, by means of which compressed air may be introduced into the upper side of the storage tank to force the liquid out of the tank through the feed pipe;

Figure 2 is a plan view, on an enlarged scale, of the mechanism, the cover of the housing being removed; Figure 3 is a sectional-plan view on line 3-3 of Figure 5;- a

Figure 4 is a detail sectional view of the locking means shown'in Figure l;

I Figure 5 'is an elevation of the operative mechanism, the housing in section and the mechanism partly in section;

Figure 8 1s a detail, partly in section, of

the container, showing the sight tube.

The storage tank 1 is preferably buried in the ground and is provided with a pipe 11 through which the liquid, for example gasoline, may be introduced or discharged. An; other pipe 12 is also preferably employed Specification of Letters Patent.

Fig. 5

Patented July 18, 1922.

npplication filed September 2, 1919. Serial No. $221,119.

through which air'undercompression is introduced, for the purpose .of providing'an elastic pressure above the surface of'the gasoline, by means of which the gasoline may be caused to rise in the pipe 11- and delivered as desired, a valve 121 providing means to close or open pipe 12 as desired. A valve 13 opens or closes the upper end of pipe 11 as may be necessary in the operation of the device. Connected to pipe ii is a branch 14 extending upward and having preferably a meter 15 inits course and provided with a valve 16.- At pipe 14 is turned to a horizontal position and carried over the container or measuring vessel 2, again turning downward to a vertical position and entering the container 2 and extending nearly-to the bottom thereof, where the ipe 14. turnsupward again (see 'I he aperture in the upper end of container 2 is slightly larger than the outside diameter of pipe 14, so that there is no contact between the parts {see Fig. 2). A standard 3-carries all the moving mechanism, by means of a scale beam 4;, upon the long arm of which are hung weightsl and upon the short arm. of which is suspended the container 2, the p-ivotpoint of this the rim of the funnel and at its inner edge with the pipe 22. This protects the interior of the funnel from dust and the like and is substantially frictionless in operation. The container 2 may be provided with sight openings in its side, but I prefer to empioy the usual sight tube 26 as shown in Fig. 6, the tube eating the level of the contents of the container and preferably a colored float to make" observation easy..

It will be observed that my system conits upper end carrying graduation marks inditemplates the measurement of the gasoline" bothby' volume and by weight. Gasolines vary somewhat 1n we1ght,*and provision IS made by a movable balancing weight 43,

which may be adjustedas necessary to adjust the balance for any particular grade of gasoline that is being dispensed. An adjustment may be made by filling the container carefully with gasoline and then adjusting end of pipe 11, the air contained in tank 1 escaping throughpipe '12. When the tank is nearly full the supply is stopped andvalve 13 closed. Compressed air isnow introduced through pipe12 and, when the de-.

sired pressure has been accumulated in the tank, 'valve'12 is closed to retain it. When it is desired to dispense gasoline, valve 16 is opened. Gasoline will now rise in pipes 11 and 14, which will pass over into the container 2, Welling upward from the up. turned end of pipe 14 and not impinging-d1- rectly on the bottom of'the container 2. As

the asoline rises in the container, its level 1 can e determined by the customer bythe sights provided and as the predetermined amount is approached the'scale' beam will work and the container dro The pipe; :14 will not interfere with the fire that pipe and'the container and consequently no friction. The silk annulus 241 will not afiect the movement of the container 2. The delivery pipe 25 beingconn'ected-toithe receptacle towhich thefliquid is tobe delivered, the valve 23 is opened and the contents. of container 2will pass out through pipes- 25', 251. I have shown a meter 15-through'- which all gasoline passing out oflthe tank pipe from the tank leading through an aperture in the top of the container to near-the P I v pping of the container 2, since there is no contact between 3 measuring container and upturnediat its dis:

must' 1 V k arglely for the benefit of the seller, enablingajc eck .to be kept upon the amount dispensed. v I 1 In the claims. I have referred' to a stand, ard, but it is to 'be understood'that by that term I mean not merely the Specific standard 3, as described, but any supportin 'ineans for the moving parts, for example, t e housing A might be utilized if-desired, though I prefer to have a separate element to carry the parts. I

- 1. In liquid measuring'and dispensing 'apparatus; a storage tank; a compressed air pipe leading to the top of .the tank; a standard; a weighing mechanism supported by that standard a graduated container carried by the weighing mechanism; a discharge bottom thereof-and discharging upward; all" combined to cause the liqu1d to .rise to';the

container by air pressure and the liquid to be simultaneouslymeasured by volume and weight.

2. In a liquid measuring and dispe'nsing apparatus; .astorage tank; a compressed air pipe leading .to the top of the tank; a standard; 'a weighing device supported by that standard; a measuring container carried by the weighing device; a discharge. pipe from the. tan -leading. into the lower end of the charge end; all combinedrto cause the liquid to rise to the. container b air pressure and to discharge upward an Weight.

August, 1919. i

the" li aid to be 7 ,Ji-I. simultaneously measured by vo nme and" Slgned I. 355% -1 his 28th day. oi... so MALI- mm 

